backuppc server -> server

I've been trying to get backuppc to work server to server (following falko's how-to here http://www.howtoforge.com/linux_backuppc_p3) but can't get my production server to recognize the backup server. I get stuck here:

nmblookup falko-desktop

Click to expand...

I even tried

falko-desktop 1 falko into /etc/backuppc/hosts instead, and in addition to that we would have had to change the variable $Conf{DHCPAddressRanges} in /etc/backuppc/config.pl

Click to expand...

...but it still fails to nmblookup. Of course, I subbed falk-desktop for the hostname of the other server but it still won't go.